Source: Health Canada shortage reports · Updated Jul 14, 2026
Some Anastrozole products are in shortage in Canada (5 of 13 reported products), while others remain available. Your pharmacy may be able to substitute an unaffected manufacturer. The latest estimate for affected products to return is Jul 30, 2026.
A hormone therapy used to treat breast cancer in postmenopausal women.
Products affected
5 / 13
In shortage since
Jan 1, 2019
Est. full return
Jul 30, 2026
Reports on file
44
Talk to a pharmacist
Pharmacists can substitute an unaffected manufacturer's version, adjust strengths, and in most provinces adapt or renew a prescription on the spot.
Independent services, not affiliated with rxstat; referral fees may apply. Free options exist depending on your province. In an emergency call 911; free health advice at 811.
Shortage history
Shortage history (red bands = periods in shortage).
Reports by product
The DIN is printed on your prescription label.
Active shortage
MINT-ANASTROZOLE
1MG · TABLET · MINT PHARMACEUTICALS INC
DIN 02393573 · since Jan 27, 2025, est. end Jul 30, 2026 · Disruption of the manufacture of the drug.
Active shortage
PMS-ANASTROZOLE
1MG · TABLET · PHARMASCIENCE INC
DIN 02320738 · since Sep 19, 2025, no end estimate · Disruption of the manufacture of the drug.
Active shortage
BIO-ANASTROZOLE
1MG · TABLET · BIOMED PHARMA
DIN 02392488 · since Jan 1, 2019, no end estimate · Changement de format d'emballage. Seul des 3x10 sont vendus actuellement.
Ce format est dormant.
Active shortage
ANASTROZOLE
1MG · TABLET · SIVEM PHARMACEUTICALS ULC
DIN 02529904 · since May 13, 2024, no end estimate · Disruption of the manufacture of the drug.
Active shortage
RIVA-ANASTROZOLE
1MG · TABLET · LABORATOIRE RIVA INC.
DIN 02392259 · since ?, no end estimate · Requirements related to complying with good manufacturing practices.
Resolved
TARO-ANASTROZOLE
1MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02365650 · ended Jun 19, 2026 · Disruption of the manufacture of the drug.
Resolved
APO-ANASTROZOLE
1MG · TABLET · APOTEX INC
DIN 02374420 · ended Jan 29, 2026 · Disruption of the manufacture of the drug.
Resolved
ACH-ANASTROZOLE
1MG · TABLET · ACCORD HEALTHCARE INC
DIN 02351218 · ended Dec 29, 2025 · Requirements related to complying with good manufacturing practices.
Resolved
TARO-ANASTROZOLE
1MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02365650 · ended Oct 14, 2025 · Disruption of the manufacture of the drug.
Resolved
TARO-ANASTROZOLE
1MG · TABLET · TARO PHARMACEUTICALS INC
DIN 02365650 · ended Jul 24, 2025 · Disruption of the manufacture of the drug.
Resolved
ANASTROZOLE
1MG · TABLET · SIVEM PHARMACEUTICALS ULC
DIN 02529904 · ended Jun 9, 2025 · Disruption of the manufacture of the drug.
Resolved
JAMP-ANASTROZOLE
1MG · TABLET · JAMP PHARMA CORPORATION
DIN 02339080 · ended Jun 16, 2025 · Disruption of the manufacture of the drug.
Showing 12 of 44 reports. All reports are on file with Health Canada.
What's happening
Anastrozole is currently affected by 5 active shortage reports filed with Health Canada by MINT PHARMACEUTICALS INC, PHARMASCIENCE INC, BIOMED PHARMA, SIVEM PHARMACEUTICALS ULC and 1 others.
The reported causes are: disruption of the manufacture of the drug; changement de format d'emballage. seul des 3x10 sont vendus actuellement.
ce format est dormant; requirements related to complying with good manufacturing practices. Manufacturers must report shortages, but end-date estimates are their own projections and often move.
If your usual product is affected, a pharmacist is the fastest route to a solution: they can dispense an unaffected manufacturer's equivalent when one exists, and in most provinces can adapt doses or substitute a therapeutic alternative without a new appointment.
Anastrozole is classified under “HORMONE ANTAGONISTS AND RELATED AGENTS” (ATC L02BG).
Recent changes
Jul 14, 2026
Shortage resolved
Common questions
What is Anastrozole used for?
A hormone therapy used to treat breast cancer in postmenopausal women.
When will Anastrozole be back in stock in Canada?
The latest manufacturer estimate is Jul 30, 2026. Estimates are self-reported and often slip; this page updates automatically when they change.
Why is Anastrozole in shortage?
See the reports above; manufacturers must state a reason (most commonly manufacturing disruption or a surge in demand) when filing with Health Canada.
What can my pharmacist do about it?
Often quite a lot: substitute an equivalent product from an unaffected manufacturer, adjust quantities, or in most provinces adapt or renew prescriptions on the spot. Call your pharmacy before visiting, and call 811 for free health advice.
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Drugs in the same therapeutic class, best-supplied first. These are not automatic substitutes: only your pharmacist or prescriber can judge whether a switch makes sense for you.
Data reflects reports manufacturers are legally required to file with Health Canada, republished with per-drug aggregation by rxstat. Estimated end dates are supplied by manufacturers and frequently change. This page describes drug supply only and is not medical advice; never stop or switch a medication without speaking to your pharmacist or prescriber.